edited by F. Landa Jocano
R.P. Garcia, 1975
Buku Teks
Phelan, John Leddy, author
University of Wisconsin Press, 1959
Buku Teks
Jocano, F. Landa, author
Philippine Center for Advanced Studies, 1975
Buku Teks
Nelson, Raymond
Thames and Hudson, 1968
Buku Teks
Marcos, Ferdinand E., author
Marcos Foundation, 1974
Buku Teks